/*
 * Copyright 2021-2023 NoSugarIce
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.nosugarice.mybatis.config;

/**
 * @author dingjingyang@foxmail.com
 * @date 2021/9/19
 */
public interface OrderComparator extends Comparable<Object> {

    /**
     * 获取比较值
     *
     * @return
     */
    default int getOrder() {
        return Integer.MAX_VALUE;
    }

    /**
     * 对比
     *
     * @param o1
     * @return
     */
    @Override
    default int compareTo(Object o1) {
        return Integer.compare(getOrderValue(this), getOrderValue(o1));
    }

    /**
     * 获取对象比较值
     *
     * @param obj
     * @return
     */
    default int getOrderValue(Object obj) {
        if (obj instanceof OrderComparator) {
            return ((OrderComparator) obj).getOrder();
        }
        return Integer.MAX_VALUE;
    }

}
